Submission #1188449

#	Time	Username	Problem	Language	Result	Execution time	Memory
1188449		teokakabadze	Knapsack (NOI18_knapsack)	C++20	73 / 100	1095 ms	488 KiB

knapsack

#include<bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define int long long
#define pii pair<int, int>
using namespace std;

const int N = 5e5 + 5, M = 1e9 + 7;
int T, n, s, dp[2003];

main()
{
    std::ios::sync_with_stdio(0);
    cin.tie(0);

    cin >> s >> n;
    for(int i = 0; i < n; i++) 
    {
        int v, w, k;
        cin >> v >> w >> k;
        for(int st = 0; st < w; st++) 
        { 
            deque<pii> d; 
            for(int j = 0, ind = st; ind <= s; j++, ind += w) 
            {
                int val = dp[ind] - j * v;
                while(!d.empty() && d.back().f <= val)
                d.pop_back();
                d.pb({val, j});
                while(d.size() && d.front().s < j - k)
                d.pop_front();
                dp[ind] = d.front().f + j * v;
            }
        }
    }
    cout << dp[s] << '\n';
}

Compilation message (stderr)

knapsack.cpp:12:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   12 | main()
      | ^~~~

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 0 / 27